Effect of oil based CMYK process inks on tearing characteristics of paper

Abstract

Every day we use many different kinds of printed materials exposed to tearing stresses. Interactions between paper and printing inks affect the inter-fiber bonds, accordingly the tearing properties of paper. This study was carried out to determine the tearing resistance properties of papers printed with solid tone offset inks, using Cyan, Magenta, Yellow, Black process series. The static tearing resistance of paper was determined by universal tensile testing device and tearing strength patterns was examined. Decrease of tear resistance and relatively close tear index ratios (cross direction / machine direction) was observed for printed papers. Application of solid tone inks increases the force required for initiation of tearing of papers.

Keywords

• Tearing resistance
• tearing with tensile tester
• CMYK ink